ARM: dts: stm32: support STM32h747i-disco board

ARM: dts: stm32: support STM32h747i-disco board

The board includes an STM32H747XI SoC with the following resources:
 - 2 Mbytes Flash
 - 1 Mbyte SRAM
 - LCD-TFT controller
 - MIPI-DSI interface
 - FD-CAN
 - USB 2.0 high-speed/full-speed
 - Ethernet MAC
 - camera interface

Detailed information can be found at:
https://www.st.com/en/evaluation-tools/stm32h747i-disco.html

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/r/20250427074404.3278732-9-dario.binacchi@amarulasolutions.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
[ upstream commit: 49ba8fc6eab63165639ffbb9f976222d39739cab ]

(cherry picked from commit 19c508dc3d584dc81c0cc6a05576f436022db5b6)